HONG KONG 2-12 PARCHED COLONY BUDDHIST MONKS AND NUNS IN HONG KONG LAST WEEK CHANTED PRAYERS TO THE PULSATING TICK-TOCK OF STICKS BEATING ON FISH-SHAPED WOODEN BLOCKS . THRONGS OF CHINESE PARADED THROUGH DOWNTOWN STREETS CARRYING HUGE PAPER DRAGONS REPRESENTING THE RAIN GOD, AND THE BLARE OF DRUMS, GONGS AND CYMBALS EXHORTED THE HEAVENS TO SEND RAIN . WHEN A BRIEF SHOWER DAMPENED HONG KONG ONE AFTERNOON, MARKING THE FIRST RAINFALL IN SIX MONTHS, MEN AND WOMEN CLAPPED THEIR HANDS AND SHOUTED FOR JOY . HONG KONG IS SUFFERING CRITICALLY FROM THE LONGEST DROUGHT IN YEARS . THE VITAL TEXTILE DYEING INDUSTRY LOST AN ESTIMATED $1,700,000 IN THE FIRST FOUR MONTHS OF THIS YEAR . THE ONLY BREWERY FACES CURTAILED PRODUCTION, AND DELIVERIES OF SOFT DRINKS HAVE FALLEN 60 PER CENT . THE RESERVOIRS ARE SO NEARLY DRY THAT HONG KONG AUTHORITIES LAST WEEK IMPOSED A STRICT NEW RATION ON THE CITY : FOUR HOURS OF RUNNING WATER EVERY OTHER DAY . IN PRIVATE HOMES WATER IS USED FIRST FOR BATHING, THEN FOR WASHING CLOTHES, FINALLY FOR GARDENS . ORDINARILY, HONG KONG BUYS 5 BILLION GALLONS OF WATER ANNUALLY FROM RED CHINA'S SHUMCHUN RESERVOIR, JUST ACROSS THE BORDER . LAST MONTH THE COLONY CONTRACTED TO BUY AN ADDITIONAL 700 MILLION GALLONS FROM THE CHINESE AT A COST OF $29,890 . AT THE REDUCED RATE OF DAILY CONSUMPTION OF 36 MILLION GALLONS (COMPARED WITH THE NORMAL 60 MILLION GALLONS PER DAY), HONG KONG'S RESERVES WILL BE EXHAUSTED IN 66 DAYS . HARDEST HIT BY THE DROUGHT ARE THE FARMERS OF THE NEW TERRITORIES, WHO DESPERATELY NEED SPRING RAINS TO SAVE THEIR RICE AND VEGETABLE CROPS . THOSE FARMERS WHO OWN WELLS PADLOCK THEM AT NIGHT TO FOIL WATER THIEVES . AT WEEK'S END, THE SHORTAGE HAD GROWN SO SERIOUS THAT SHIPS OF THE U.S . SEVENTH FLEET WERE ORDERED TO CEASE TAKING ON POTABLE WATER IN HONG KONG " TO AVOID FURTHER DRAIN ON THE LOCAL WATER SUPPLY . /